arguing with myself

My husband and I have decided to start trying for another baby. Our son is going on 20 months old. I am continuously arguing with myself "have another baby they're so cute oooo baby fever!!" And "no spend more time with this baby he hasn't had enough one on one time etc" we don't want a big age gap which is why we chose now but I am torn every day. I'm assuming it never goes away so we might as well just go for it right? Other wise my son will be 20 and I'll still be arguing with myself.